Movable weir



June 25, 1935.

H. ZIMMERMANN MOVABLE WEIR Filed July's, 1954 Patented June 425 1935nfi'jiiflil*rsp STATT-:s PATENT orifice-ff MovABLE WEI.' f

Application July 9, 1934, Serial No. 734,412 In Germany October 29, 19313 Claims.

The invention relates to an improvement in movable weirs of the Stoneyroller type the body of which has a quadrangular cross section, and moreespecially to an improved connection `of the weir body to the wheelsupports at the ends of the same, which connection is most advantageousfor sluice Weirs with large distance of supports. f

According to the invention the quadrangular Weir body is at its ends soconstructed, that the end members of the tail Water beams of the maingirders are in the end field inclined from the horizontal main girderlevels so that they converge in the perpendicular line passing throughthem in the level of the end plate and meet in a single point. Thus thesaid end members form a triangle in the perpendicular level of the endplates. By this means a considerable expenditure of iron structure ormasonry as in the known constructions is avoided.

The invention is more clearly described by way of example in theaccompanying drawing, in which Fig. l. is a cross-section of the novelconnection between the quadrangular Weir body and its end platesaccording to line l-I of Fig. 2,

Fig. 2 is a plan View according to Fig. l,

Fig. 3. is a cross section through line 3-3 of Fig. 2, and

Fig. 4 is a side-.view accordingto Fig. 2.

In Fig. l the triangular form of the Weir body structure in the level ofthe end plate 8 is shown, while in Fig. 3 the quadrangular cross-sectionof the Weir body is represented with the top and the bottom main girder45 and 44 respectively and the separate head water beams 41 and 46respectively and separate tail Water beams 50 and 6u respectively. Inorder to better distinguish the single members of the beams in Figs. 2and k4 the indices a, b and c are used for the beam members 46 and 41and the indices I, 2 and 3 for the members 6D and 6u. According to theinvention the end members 601 and Bui respectively of the tail Waterbeams of the main girders 44 and 45 are in the end i'leld so inclinedfrom the horizontal main girder vlevels that they converge in theperpendicular line` passing through them in the level of the end plate(Fig. 4). Theythus form a triangle with the members' 33', 34 and 43 inthe area of the perpendicular connection of the beams 60 and 6u whichwith its base therefore rest immediately on the end. plates 8. 9 and I 0are the bearings With which the end plate 8 rests upon the bogie Wagonsor supporting wheels II and I2, and 4| is the pier with its recess 42 inwhich the Weir can be moved. 43 is the weir Wall or skin plate of theWeir body with which the main girders 44 and 45 and the head Water beams46 and 41 are connected.

In contradistinction thereto the hitherto used construction with aquadrangular Weir section made it necessary either to enlarge the axlebase of the supporting wheels or the breadth of the pier recess in orderto properly connect the Weir body with the end plate. The iirstmentioned arrangement requires a greater length and bending stress ofthe end plate 8, i. e. a considerable additional expenditure in ironstructures and generally a pit in the recess base as Well as aheightening of the pier which entails additional expenditure of masonryand at the same time disadvantages in operation (accumulation of mud orsettling of stones in the pit of the supporting wheels). The latterarrangement necessitates a considerable increase of the recess width andtherefore an enlargement of the pier which also means an additionalexpenditure of masonry. For these reasons constructors have hithertodesisted therefrom and have rather put up with the construction of themain girders with their disadvantageous consequences in respect of theoscillation rigidity of the Weir.

What I claim and desire tot secure by Letters Patent of the UnitedStates is:

el. Movable Weir of the Stoney roller type the body of which has aquadrangular cross-section comprising a Weir wall, upper and lower maingirders, the said main girders being substantially parallel andconnected at their one end with the Weir wall, beams at the ends of themain girders, lateral end plates to which the beams are connected, thebeams at the free ends of the main girders being substantially parallelin a horizontal level except their end members in the end field, whichend members are so inclined that they converge and intersect each otherin the end plates in a single point so that a triangle of beams isformed in the end elds.

2. Movable weir of the Stoney roller type the body of which has aquadrangular cross-section, comprising a Weir wall, upper and lower maingirders which are substantially parallel and connected at their one endwith the Weir wall, upper and lower head water beams and tail waterbeams at the ends of the main girders, lateral end plates to which thebeams areV connected, the head Water beams being arranged parallel toone another at the Weir wall, the tail water beams being substantiallyparallel to the weir wall from end plate to end plate and parallel toone another in a horizontal level except their end members in the rendeld, which end members are so inclined that they converge and intersecteach other in the end plates in a single point so that a triangle ofbeams is formed in the end fields.

3. Movable WeirOf the Stoney roller type the body of which hasaquadrangular cross-section, comprising a Weir wall, upper and lowermain glrders which are substantially parallel and con? nected at theirone end with the Weir wall, .upper and lower head water beams and tailwater beams at the ends of the main/girders, 'lateral end plates towhich the beams are connectedythe head water beams being arrangedparallel to one another at the Weir wall, the tail water beams beingsubstantially parallel to the Weir wall from kend plate to end plateandparallel to one an'- other in a horizontal level except their endmembers in. the end eld, which end members are so inclined that theyconverge and intersect each other in the end plates in a single point sothat a ltriarigleoi.' beams is formed ini thefedxplates, bearings *atthe tail water side 'of the end'plates, bogie wagons for supporting andmoving the weir body, the said bogie wagons being nonnected with thebearings of the end plates and arranged close below and above theintersecting point of the tail Water V beams.

HANS ZIMMERMANN.

